Effect of neutron irradiation on soft magnetic properties in amorphous FeCuNbSiB alloy

H. C. Kim; S. C. Yu; C. G. Kim; H. S. Han; W. K. Cho; D. H. Kim

doi:10.1063/1.372948

Effect of neutron irradiation on soft magnetic properties in amorphous FeCuNbSiB alloy

H. C. Kim, S. C. Yu, C. G. Kim, H. S. Han, W. K. Cho, D. H. Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

The changes in soft magnetic properties on amorphous Fe_73.5Cu₁Nb₃Si_13.5B₉ alloy after neutron irradiation are studied by complex permeability spectra, magnetoimpedance ions and M - H curve measurements. The total integration fluence of fast neutrons (n_f,E_n>1 MeV) is varied from 1.92×10¹⁴n_fcm^-2 to 4.85×10¹⁶n_fcm^-2. Two different types of relaxation processes in permeability spectra, which were observed in low and high frequency regions, are related to the domain wall motion and the rotational magnetization, respectively. As neutron irradiation fluence increases, the permeability due to domain wall motion decreases but the permeability due to rotational magnetization increases. The anisotropy field estimated from magnetoimpedance profile decreases with neutron irradiation fluence. The measurement of M - H curves shows the improvement of softness after neutron irradiation of 4.85×10¹⁶n_fcm^-2, due to the enhancement of rotational magnetization.

Original language	English
Pages (from-to)	7115-7117
Number of pages	3
Journal	Journal of Applied Physics
Volume	87
Issue number	9 III
DOIs	https://doi.org/10.1063/1.372948
Publication status	Published - 2000 May 1
Event	44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States Duration: 1999 Nov 15 → 1999 Nov 18

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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@article{41a04852383a4947a8e7d532f0818405,

title = "Effect of neutron irradiation on soft magnetic properties in amorphous FeCuNbSiB alloy",

abstract = "The changes in soft magnetic properties on amorphous Fe73.5Cu1Nb3Si13.5B9 alloy after neutron irradiation are studied by complex permeability spectra, magnetoimpedance ions and M - H curve measurements. The total integration fluence of fast neutrons (nf,En>1 MeV) is varied from 1.92×1014nfcm-2 to 4.85×1016nfcm-2. Two different types of relaxation processes in permeability spectra, which were observed in low and high frequency regions, are related to the domain wall motion and the rotational magnetization, respectively. As neutron irradiation fluence increases, the permeability due to domain wall motion decreases but the permeability due to rotational magnetization increases. The anisotropy field estimated from magnetoimpedance profile decreases with neutron irradiation fluence. The measurement of M - H curves shows the improvement of softness after neutron irradiation of 4.85×1016nfcm-2, due to the enhancement of rotational magnetization.",

author = "Kim, {H. C.} and Yu, {S. C.} and Kim, {C. G.} and Han, {H. S.} and Cho, {W. K.} and Kim, {D. H.}",

year = "2000",

month = may,

day = "1",

doi = "10.1063/1.372948",

language = "English",

volume = "87",

pages = "7115--7117",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "9 III",

}

TY - JOUR

T1 - Effect of neutron irradiation on soft magnetic properties in amorphous FeCuNbSiB alloy

AU - Kim, H. C.

AU - Yu, S. C.

AU - Kim, C. G.

AU - Han, H. S.

AU - Cho, W. K.

AU - Kim, D. H.

PY - 2000/5/1

Y1 - 2000/5/1

N2 - The changes in soft magnetic properties on amorphous Fe73.5Cu1Nb3Si13.5B9 alloy after neutron irradiation are studied by complex permeability spectra, magnetoimpedance ions and M - H curve measurements. The total integration fluence of fast neutrons (nf,En>1 MeV) is varied from 1.92×1014nfcm-2 to 4.85×1016nfcm-2. Two different types of relaxation processes in permeability spectra, which were observed in low and high frequency regions, are related to the domain wall motion and the rotational magnetization, respectively. As neutron irradiation fluence increases, the permeability due to domain wall motion decreases but the permeability due to rotational magnetization increases. The anisotropy field estimated from magnetoimpedance profile decreases with neutron irradiation fluence. The measurement of M - H curves shows the improvement of softness after neutron irradiation of 4.85×1016nfcm-2, due to the enhancement of rotational magnetization.

AB - The changes in soft magnetic properties on amorphous Fe73.5Cu1Nb3Si13.5B9 alloy after neutron irradiation are studied by complex permeability spectra, magnetoimpedance ions and M - H curve measurements. The total integration fluence of fast neutrons (nf,En>1 MeV) is varied from 1.92×1014nfcm-2 to 4.85×1016nfcm-2. Two different types of relaxation processes in permeability spectra, which were observed in low and high frequency regions, are related to the domain wall motion and the rotational magnetization, respectively. As neutron irradiation fluence increases, the permeability due to domain wall motion decreases but the permeability due to rotational magnetization increases. The anisotropy field estimated from magnetoimpedance profile decreases with neutron irradiation fluence. The measurement of M - H curves shows the improvement of softness after neutron irradiation of 4.85×1016nfcm-2, due to the enhancement of rotational magnetization.

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U2 - 10.1063/1.372948

DO - 10.1063/1.372948

M3 - Conference article

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VL - 87

SP - 7115

EP - 7117

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 9 III

T2 - 44th Annual Conference on Magnetism and Magnetic Materials

Y2 - 15 November 1999 through 18 November 1999

ER -